Prvi Partizan PPU GROM (Thunder) Line 300Win Mag 170Gr GTB 20 Round Box


Out of stock

Analyzing your needs and wishes, we designed a new bullet type, Grom; a mostly of copper alloy bullet with a small lead core.  The research confirmed our efforts to offer you a high performance bullet type with an optimum balance of controlled and reliable expansion, deep penetration, maximum weight retention, good accuracy and satisfying energy.  GROM Line ammunition is intended for big game hunting.



Bullet Type Grom Thunder Bullet
Bullet Weight (g) 11.0

Ballistics (610mm Test Barrel):

Velocity (m/s):

Muzzle 50 m 100 m 150 m 200 m 250 m 300 m
875 834 794 755 717 680 645

Energy (J):

Muzzle 50 m 100 m 150 m 200 m 250 m 300 m
4217 3829 3470 3138 2831 2549 2289

Trajectory (cm):

Muzzle 50 m 100 m 150 m 200 m 250 m 300 m
-5 0.3 2.1 0 -6.3 -17.6 -34.2

Additional Information:


Manufacturers, importers, suppliers, and distributors may make changes to their products without fanfare. Such changes can lead to discrepancies between the advertised product and the actual product in inventory. While International Shooting Supplies Ltd. endeavors to correctly describe the actual product in inventory, we will not be responsible for unintentional inaccuracies in text and images of the advertised product.



300 Win Mag


Prvi Partisan

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